QBert Thudrumble Silver Vestax QFO-E Tonearm Assembly

QBert Thudrumble Silver Vestax QFO-E Tonearm Assembly QBert Thudrumble Silver Vestax QFO-E Tonearm Assembly QBert Thudrumble Silver Vestax QFO-E Tonearm Assembly QBert Thudrumble Silver Vestax QFO-E Tonearm Assembly QBert Thudrumble Silver Vestax QFO-E Tonearm Assembly This is a tonearm for a Silver QFO E that features the spring loaded tonearm. As you can see from the pictures, the black "dynamic stylus pressure adjustment knob" is missing. It was damaged when my QFO was shipped. I've found a replacement tonearm assembly but the rest of this tonearm is in good condition & could be used for parts. The tensioner spring assembly is still inside the silver numbered tube. This tonearm works fine as is on a level surface but the spring tension cannot be adjusted unless you improvise & use something to hold it in place like a toothpick which seems to work ok.
This tonearm is made specifically for the silver QFO E which features built in crossfader, EQ, & the A.S.T.S system which allows the QFO to be played at extreme angles, while moving or aggressively scratching, without skipping. According to Vestax there were only 500 silver QFO E's made. The QFO was released around 2005. Parts are not easy to find. A new tonearm assembly costs around $150-200 if you can even find one. The owner's manual reads:
"A.S.T.S (Anti Skipping Tone-arm System) has been developed with years of experience and a number of trials, searching for the innovative tone-arm for professional DJ's. This system breaks all of the historic common sense, achieving its non skipping performance in hard scratching. A.S.T.S consists of two inventions, short/straight arm and TH (Tracing Hold) balance system.

●TH balance system gives horizontal movement in addition to vertical. This movement gives much more stable balance (vertical direction) to the needle. The combination of short / straight arm and TH balance system gives the best stability to the needle, which enables anti-skipping in hard scratching.

●The brass arm with aluminum cover is used for A.S.T.S . This combination results in the best pick up sensitivity as well as the best resistance to howling. This new tone-arm allowed A.S.T.S to increase the resistance against the howling by over 50% compared to the normal aluminum arm."